
Adjustable Glass Circle Cutter, Round Knob and Suction Cup to Hold Center While Cutting Circles. Easy-to-read lever features clear, easy-to-read graduations. The maximum diameter of the compass cutting circle is 40cm. Rod length 20cm, suction cup diameter 5.5cm Application Ideal for hobbyists and professional glass cutters. Note: The data are all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.